10.4.5 Update Causing Error -36 with LaCie Firewire External Hard drives

I have two LaCie Firewire external drives, one for extra storage and one for backups. Since the 10.4.5 update, I've been unable to copy files consistently from my external drives to my hard drive or other external drives. The disks mount, and run like normal - I have my iTunes library on one drive, and all the tracks play normally. I am able to copy very small files, but anything over a couple mb gives me an error -36. I've run disk utilities etc on the external drives and they appear to be just fine. In order to see if it's an OS problem, I hooked the external drives (in a daisy chain) to my girlfriend's ibook. She's running Jaguar still, and had no problems. So it appears that it's an OS upgrade problem. One note, I didn't disconnect the drives when I ran the upgrade, but then, I never have for upgrades, only full OS installs. Is anyone else having this problem and know of any fixes?

Libby,
Backup is unable to make a restorable by Disk Utility backup. You can restore pieces of the software as outlined in my FAQ about backing up user data:
http://www.macmaps.com/backup.html
But to be able to restore a backup with Disk Utility, you need a cloning utility to have made the backup.
I suggest starting a new thread here, where someone else could help you out better:
http://discussions.apple.com/forum.jspa?forumID=752&start=0
First off, you'll get a wider audience who may be able to solve your problem. Secondly, responses to you won't confuse the original poster with solutions that don't apply to them. And thirdly, you'll know for certain whether or not a response applies to you.

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